# NFL Passer Rating Calculator

Calculate NFL passer rating from game stats. Enter completions, attempts, yards, touchdowns, and interceptions to get the official quarterback rating (0 to 158.3).

## What this calculates

Calculate a quarterback's passer rating using the official NFL formula. Just plug in completions, attempts, yards, touchdowns, and interceptions from any game, season, or career, and get the exact passer rating on the 0 to 158.3 scale.

## Inputs

- **Completions** — min 0, max 1000
- **Pass Attempts** — min 1, max 1000
- **Passing Yards** — min -500, max 10000
- **Touchdowns** — min 0, max 100
- **Interceptions** — min 0, max 100

## Outputs

- **Passer Rating** — NFL passer rating (0 to 158.3 scale)
- **Completion %** — formatted as percentage — Completion percentage
- **Yards per Attempt** — Average yards gained per pass attempt
- **TD %** — formatted as percentage — Touchdown percentage
- **INT %** — formatted as percentage — Interception percentage
- **Rating Tier** — formatted as text — How this rating compares historically

## Details

The NFL passer rating formula was introduced in 1973 by Don Smith of the Pro Football Hall of Fame. It combines four key passing statistics into a single number between 0 and 158.3. A "perfect" passer rating of 158.3 requires hitting the maximum on all four components.

**The four components are:**
- **Completion percentage:** (completions / attempts - 0.3) x 5
- **Yards per attempt:** (yards / attempts - 3) x 0.25
- **Touchdown percentage:** (touchdowns / attempts) x 20
- **Interception percentage:** 2.375 - (interceptions / attempts x 25)

Each component is capped between 0 and 2.375. The final rating equals the sum of all four divided by 6, then multiplied by 100.

For context, the average NFL passer rating has hovered around 88-92 in recent seasons. A rating above 100 is considered elite, and only a handful of quarterbacks sustain that over a full career. The all-time career leader is Aaron Rodgers with a 104.5 rating. A perfect 158.3 game requires at least a 77.5% completion rate, 12.5+ yards per attempt, 11.875%+ TD rate, and 0% interceptions.

Note: this is the NFL passer rating, not the newer ESPN QBR (Total Quarterback Rating) which uses a 0-100 scale and incorporates play context.

## Frequently Asked Questions

**Q: What is a perfect passer rating?**

A: A perfect NFL passer rating is 158.3. To achieve it in a game, a quarterback needs at least a 77.5% completion rate, 12.5 yards per attempt, a touchdown on 11.875% of passes, and zero interceptions. As of 2024, over 80 perfect passer rating games have been recorded in NFL history.

**Q: What is the lowest possible passer rating?**

A: The lowest possible NFL passer rating is 0.0. This happens when all four components hit their minimum (capped at 0). In practice, a rating of 0.0 would require 0% completions with negative yards per attempt and a high interception rate. Completing zero passes on at least one attempt with an interception produces a 0.0 rating.

**Q: What is the difference between passer rating and QBR?**

A: NFL passer rating (0 to 158.3) uses only box-score stats: completions, attempts, yards, touchdowns, and interceptions. ESPN's QBR (0 to 100) is a more complex formula that factors in game context, opponent strength, rushing, sacks, fumbles, and the expected points added of each play. QBR is considered more holistic but is proprietary and not fully transparent.

**Q: Why is the max 158.3 and not a round number?**

A: The maximum of 158.3 is not arbitrary. Each of the four components caps at 2.375. The sum of four maximum values (9.5) divided by 6 equals 1.58333..., and multiplied by 100 gives 158.333... which rounds to 158.3. The formula was designed to normalize each component to a similar scale, and 158.3 is simply where the math lands.

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Source: https://vastcalc.com/calculators/health/passer-rating
Category: Health & Fitness
Last updated: 2026-04-08